All names: Gaia DR2 1735991253803944960, USNO-B1.0 0964-00553406, 2MASS J20462079+0626252, HS2043+0615, TIC 383304090, GALEX J204620.8+062625, HS 2043+0615, Gaia DR3 1735991253803944960, UCAC4 483-130586
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 46 20.86 | 20 46 20.79 (0.03) | ||
| Declination | 06 26 24.39 | 06 26 25.34 (0.02) | ||
| Spectral type | sdB+dM | sdB | ||
| Effective temperature | [K] | 26157.0 (500) | ||
| log(g) | [cgs] | 5.28 (0.05) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.28 (0.06) | 0.33 (0.04) | |
| Distance | [pc] | 3514.94 (773) | 3015.68 (396) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.732 (0.09) | -2.774 (0.04) | |
| Proper motion (declination) | [mas/yr] | -6.342 (0.08) | -6.306 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.90 | |||
| V magnitude | ||||
| R magnitude | 16.20 | |||
| I magnitude | ||||
| J magnitude | 16.10 (0.09) | 16.10 (0.09) | ||
| H magnitude | 16.01 | |||
| K magnitude | 15.82 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.94 (0.003) | 15.92 (0.003) | ||
| BP magnitude | 15.77 (0.009) | |||
| RP magnitude | 16.09 (0.01) | |||
| Pan g magnitude | 15.77 (0.002) | |||
| Pan r magnitude | 16.16 (0.005) | |||
| Pan i magnitude | 16.37 (0.01) | |||
| Pan z magnitude | 16.69 (0.003) | |||
| Pan y magnitude | 16.75 (0.01) | |||
| E(B-V) | 0.070 | |||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.